Automatic sliding door system

By connecting the trailing door body to a slider via a bracket and arranging the stator above the hanger rail with an extension piece, the door device avoids slider contact with the frame, ensuring reliable operation and simplifying the structure.

JP2025099421APending Publication Date: 2025-07-03SANWA SHUTTER CORP
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Patent Information

Application Number
JP2023216070
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-21
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

The issue with existing sliding door devices using a linear motor as a drive source is that the slider protrudes beyond the door body, potentially contacting the door frame before full opening, preventing the door from fully opening.

Method used

The solution involves configuring the door device with a trailing door body connected to a slider via a bracket, using a linear motor with a stator on the housing and a magnet on the door body, ensuring the slider does not protrude beyond the door frame by arranging the stator above the hanger rail and forming an extension piece to attach the stator, and integrating a locking mechanism for the closed position.

Benefits of technology

This configuration allows reliable opening and closing of the door without the slider contacting the door frame, simplifies the structure by using the hanger rail as a stator mounting member, reduces parts, and facilitates maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

To configure a driving source for automating a sliding door device 1 that opens / closes an opening E by simultaneously moving first and second door bodies 2 and 3, which are arranged in a series on the right and left in a fully closed posture, in a right and left direction, in the form of a linear motor configured by using a stator 15 equipped with a field coil and a slider 16 equipped with a magnet, the slider 16 being connected so as not to interfere with opening / closing movements of the first and second door bodies 2, 3.SOLUTION: An automatic sliding system is configured in such a manner of providing first and second door bodies 2, 3 in the form of a hanger type, connecting second brackets 7, 8 on which hanger rollers 9 for the second door body are connected to a slider 16, and causing the second door body 3 on the door tail side to serve as a door body on the driving side, thereby ensuring reliable opening / closing operations.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to the technical field of a sliding door type automatic door device for opening and closing an opening such as a building entrance.

Background Art

[0002] Generally, a door device is provided to open and close an opening such as a building entrance. As such a door device, there is a sliding door type that opens and closes the opening by moving a door body (door leaf, door panel) in the left - right direction. Further, among such sliding door type door devices, among a plurality of door bodies connected in series, when the door body on the leading - end side of the door moves left - right to open and close, other door bodies also move simultaneously in an interlocking manner (see, for example, Patent Document 1). This device includes two door bodies, a first door body on the leading - end side and a second door body on the trailing - end side as the door bodies. The first and second door bodies are interlock - connected such that when the first door body operates to open and close, the second door body operates to open and close at a speed of 1 / 2 of that of the first door body. When the first door body moves left - right to open and close, the second door body also moves simultaneously in an interlocking manner, and when the opening and closing movement of the first door body ends, the second door body also ends its opening and closing movement. It constitutes a manually - operated sliding door type door device. On the other hand, as a drive source for automating (electrifying) the opening and closing movement of the door device, instead of a generally known electric motor in which a rotor rotates with respect to a cylindrical stator (stator), a linear motor in which a slider linearly moves with respect to a linear stator (stator) is proposed. In this case, the stator is provided on the housing side as being configured using a field coil (excitation coil), while the slider is connected to the door body side as being configured using a magnet (permanent magnet), and by controlling the current applied to the stator, the slider is moved left - right together with the door body so that the opening can be opened and closed (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-104830 [Patent Document 2] Japanese Patent Application Laid-Open No. 2022-54468 [Summary of the Invention] [Problems to be Solved by the Invention]

[0004] By the way, regarding the sliding door device that opens and closes the opening by simultaneously opening and closing a plurality of door bodies described above, for example, assuming that the door bodies are the first and second door bodies on the leading edge side and the door bottom side of the door, and a linear motor is adopted as a drive source for automating this door device, it is proposed to connect the first door body on the leading edge side, which is opened and closed manually, to a slider and move it for opening and closing. However, in the case of using the linear motor as a drive source, while the slider is set to have a long length approximately corresponding to the left-right width (frontage width) of the opening, the first door body closes the opening together with the second door body arranged in a continuous left-right manner in the fully closed state. Therefore, the left-right width of the first door body is shorter than that of the slider, and the slider is attached in a state of protruding toward the door bottom side with respect to the first door body. As a result, there are problems such as the protruding tip of the slider coming into contact with the door bottom side member (door bottom side vertical frame) of the door pocket before the first door body changes to the fully open posture, making it impossible to open the opening. These are the problems to be solved by the present invention. [Means for Solving the Problems]

[0005] The present invention was created for the purpose of solving these problems in view of the above circumstances. The invention according to claim 1 is a sliding door device in which a plurality of door bodies arranged in a series in the left-right direction in a closed state are interlockingly connected so that the remaining door bodies also open and close simultaneously in conjunction with the opening and closing movement of the door body on the leading edge side of the door, thereby opening and closing the opening. When configuring a drive source for automatically driving the opening and closing of the door device using a linear motor having a field coil, a linear stator provided on the housing side, and a slider having a magnet and provided on the door body side, the door body to which the slider is connected is a door body on the trailing edge side of the door. It is a sliding door type automatic door device characterized by this. The invention according to claim 2 is a sliding door type automatic door device according to claim 1, characterized in that the door body is composed of a two-piece door body including a first door body on the leading edge side of the door and a second door body on the trailing edge side of the door, and the slider and the second door body are integrally connected via a bracket. The invention according to claim 3 is such that the first and second door bodies are hanger type door bodies, and the hanger roller for the second door body is provided on a trailing edge side bracket provided at the upper edge portion of the second door body and a leading edge side bracket provided on a support member extending from the upper edge portion of the second door body toward the leading edge side of the door. The slider is connected to the leading edge side and trailing edge side brackets. It is a sliding door type automatic door device according to claim 2, characterized by this. The invention according to claim 4 is such that the stator is arranged above the hanger rail for the second door body on which the hanger roller for the second door body runs, the slider is arranged between the stator and the hanger rail for the second door body, and an extension piece portion that extends upward beyond the slider arrangement portion in a state of bypassing the hanger roller for the second door body that runs on the hanger rail for the second door body is formed on the hanger rail for the second door body, and the extension piece portion is configured as a stator attachment piece portion for attaching the stator. It is a sliding door type automatic door device according to claim 3, characterized by this. The invention according to claim 5 is a sliding door type automatic door device according to claim 4, characterized in that the stator attachment piece portion is formed by extending an upper rail attachment piece portion for attaching the hanger rail for the second door body to the housing side. The invention according to claim 6 is a sliding door type automatic door device according to claim 4 or 5, characterized in that one of the door tip side and door butt side brackets is provided with an extended bracket portion whose upper end extends to the stator attachment piece portion, and a locking device for locking the first door body in the closed position is provided on the extended bracket portion and the stator attachment piece portion. The invention according to claim 7 is a sliding door type automatic door device according to claim 6, characterized in that the locking device comprises a lock main body portion provided on the stator attachment piece portion and a lock receiving portion provided on the extended bracket portion for the lock rod protruding from the lock main body portion to engage in the closed position of the first door body.

Advantages of the Invention

[0006] By adopting the invention according to claim 1, when configuring a linear motor having a linear stator and a slider as a drive source for automatically performing a sliding door type door device in which a plurality of door bodies arranged in a series in the left-right direction are interlocked and linked so that the remaining door bodies are also opened and closed simultaneously in conjunction with the opening and closing movement of the door body at the door tip side to open and close the opening, as a result of setting the door body to which the slider is connected as the door body at the door butt side, even if the door body at the door tip side has a high moving speed and the slider is long, it is possible to avoid the slider contacting the door butt side edge portion of the door pocket before full opening, and reliable opening and closing operation of the door body can be achieved. By adopting the invention according to claim 2, the door body is composed of a two-piece door body including a first door body at the door tip side and a second door body at the door butt side, and as a result of connecting the slider constituting the linear motor serving as a drive source for automation to the second door body via a bracket, automation using the linear motor of the sliding door type door device using the first and second door bodies can be surely achieved. By making the invention of claim 3, when the first and second door bodies are of the hanger type, the hanger roller for the second door body is provided on the door butt side bracket provided at the upper end edge of the second door body and the door tip side bracket provided on the support member extending from the upper end edge of the second door body toward the door tip side, and the slider is connected to the door tip side and door butt side brackets. As a result, it becomes possible to simply automate the hanger type door body with a linear motor with a simple structure. By making the invention of claim 4, the stator is arranged above the hanger rail for the second door body on which the hanger roller for the second door body runs, the slider is arranged between the stator and the hanger rail for the second door body, and an upward extension piece is formed on the hanger rail for the second door body in a state of bypassing the hanger roller for the second door body. As a result, the hanger rail for the second door body is also used as a stator mounting member, and the number of parts can be reduced and the structure can be simplified. By making the invention of claim 5, the stator mounting piece is formed by extending from the rail mounting piece for mounting the hanger rail for the second door body to the housing side. As a result, while the hanger rail for the second door body can be also used as a stator mounting member, the structure of the hanger rail for the second door body can be simplified. By making the invention of claim 6, one of the door tip side and door butt side brackets is provided with an extension bracket portion extending to the stator mounting piece portion at the upper end portion, and a locking device for locking the first door body in the closed position is provided on the extension bracket portion and the stator mounting piece. As a result, the stator mounting piece and one of the door tip side and door butt side brackets are also used as members for mounting the locking device, and the number of parts can be reduced and the structure can be simplified. By making the invention of claim 7, the locking body portion constituting the locking device is provided on the stator mounting piece, and the locking receiver portion for locking the locking rod protruding from the locking body portion is provided on the extension bracket portion. As a result, the mounting structure of the locking device is simplified and maintenance is also facilitated.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

BEST MODE FOR CARRYING OUT THE INVENTION

[0008] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, a sliding door device for opening and closing an opening E such as an entrance of a building, the door device 1 is composed of a first door body 2 on the leading end side of the door and a second door body 3 on the trailing end side of the door, both of which are of the hanger type as will be described later, and the first door body 2 is configured in a nested (telescopic) shape so as to be retractable in the left-right direction into the second door body 3. And the first and second door bodies 2 and 3 are configured to close the opening E in a deployed posture in which the first door body 2 extends greatly from the second door body 3 toward the leading end side of the door and is deployed in a continuous manner in the left-right direction, and to open the opening E in a stored posture (stored posture) in which the first door body 2 is deeply nested (inserted) and stored in the second door body 3, which will be described in detail below.

[0009] The second door body 3 on the trailing end side of the door includes front and rear panel portions 3a provided with a gap for accommodating the first door body 2 therebetween and a trailing end side vertical frame (trailing end edge portion) 3b, and a support member 4 configured to extend from the second door body 3 toward the leading end side is sandwiched between the upper end edge portions 3aa of the front and rear panel portions 3a. By being provided in this state, the second door body 3 is configured to move integrally left and right together with the support member 4. A hanging piece 4a hangs down from the part of the support member 4 on the side of the housing G, and a first door body hanger rail (guide rail) 5 is integrally formed at the lower end of the hanging piece 4a.

[0010] On the other hand, on the upper edge 2a of the first door body 2, first brackets 2aa and 2ab on the leading edge side and trailing edge side of the door are provided. And first door body hanger rollers (guide rollers) 6 that run on the first door body hanger rail 5 are provided on both of the first brackets 2aa and 2ab. Thus, the first door body 2 is configured as a hanger-type door device in which the first door body hanger rollers 6 run left and right on the first door body hanger rail 5. The trailing edge 2c of the first door body 2 is positioned at the leading edge 3d part of the second door body 3, and the leading edge 2d of the first door body 2 protrudes greatly forward from the second door body 3. In this way, the first and second door bodies 2 and 3 are in an unfolded posture (connected posture) in which they are unfolded (connected) in series in the left-right direction, and when the first door body 2 is deeply inserted and stored in the second door body 3, the trailing edge 2c is positioned at the trailing edge 3c part of the second door body 3 and abuts or is close to and faces the trailing vertical frame 3b, and the leading edge 2d protrudes slightly from the leading edge 3d of the second door body 3. It is configured to be able to change its posture to a storage posture (stored posture).

[0011] At the upper edge portion 4b of the support member 4, a second bracket 7 on the door butt side located above the second door body 3 and a second bracket 8 on the door tip side located on the door tip side of the second door body 3 are provided. Second door body hangar rollers 9 are provided on the second brackets 7 and 8 on the door butt side and the door tip side (corresponding to the "door butt side and door tip side brackets" of the present invention). The second door body hangar rollers 9 are guided to travel on a second door body hangar rail 10 provided horizontally on the housing G side at the ceiling portion H. Thus, the second door body 3 can be transformed between a fully closed position (closed position) in which, with the first door body 2 in the deployed posture, the door tip side edge portion 3d protrudes greatly from the door pocket 19 toward the door tip side and the door butt side edge portion 3c is located at the door tip side edge portion (vertical frame) 19b of the door pocket 19, and a fully open position (open position) in which, with the first door body 2 in the stored posture, the door butt side edge portion 3c is deeply inserted into the door pocket 19 and abuts or is closely opposed to the vertical frame 19a provided at the door butt side edge portion of the door pocket 19, and the door tip side edge portion 3d is located at the door tip side edge portion 19b of the door pocket 19. Incidentally, the attachment of the second door body hangar rail 10 of the present embodiment to the housing G side is configured such that a rail attachment piece portion 10b that bends upward in a state of bypassing the second door body hangar roller 9 is formed from the housing G side edge portion of the rail main body portion 10a on which the second door body hangar roller 9 actually travels, and the rail attachment piece portion 10b is attached and fixed to the housing G side by screws 10c. However, the present invention is not limited to such a configuration, and it can also be implemented by screwing a rail attachment piece portion (not shown) formed by bending downward from the housing G side edge portion of the rail main body portion 10a.

[0012] On the support member 4, pulley 11 and pulley 12 are respectively provided on the door head side and the door tail side in a state of being arranged on the door head side of the second brackets 7 and 8 on the door tail side and the door head side, and an endless transmission belt 13 is wound around these pulleys 11 and 12. And the first door body 2 and the transmission belt 13 are connected via a connecting bracket 14 provided on the first bracket 2aa on the door head side in a state of being located on the door head side of the first bracket 2aa on the door head side. With such a configuration, the first door body 2 and the second door body 3 are connected in series via the transmission belt 13 wound around a so-called movable pulley. Then, due to the left and right movement of the transmission belt 13 linked to the left and right movement of the first door body 2, the second door body 3 moves simultaneously in the left and right directions at a speed of 1 / 2 of the first door body. With such a configuration, the door device 1 can be transformed between a fully closed posture in which the first door body 2 and the second door body 3 are arranged in series in the left and right directions to close the opening E, and a fully open posture in which the first door body 2 is deeply inserted into the second door body 3 and is accommodated in the door pocket 19 to open the opening E.

[0013] Above the rail main body 10a of the hanger rail 10 for the second door body, a linear stator 15 that is long in the left and right directions and in which a field coil 15a for a linear motor is provided with a gap is disposed. In the gap between the stator 15 and the rail main body 10a of the hanger rail 10 for the second door body, a linear slider 16 that is long in the left and right directions and in which a magnet 16a is provided is disposed. Among them, the stator 15 is attached to the hanger rail 10 for the second door body, and the slider 16 is attached to the second door body 3.

[0014] Specifically, the hanger rail 10 for the second door body is provided with a rail attachment piece portion 10b provided in a state of bypassing the hanger roller 9 for the second door body. An inverted L-shaped extension piece portion 10d extending upward beyond the arrangement position of the slider 16 is integrally formed from the upper edge portion of the rail attachment piece portion 10b. The stator 15 is attached to the upper piece portion of the extension piece portion 10d via a screw 15b. With such a configuration, the extension piece portion 10d serves as a stator attachment piece portion for attaching the stator 15. The stator 15 attached in this state is configured as a long linear one extending from the door tip side portion of the opening E to the door bottom side portion of the door pocket 19. Incidentally, the stator 15 is configured to be attached to a stator attachment piece portion 10d integrally formed on the hanger rail 10 for the second door body. In this case, in the present embodiment, since the rail attachment piece portion 10b is bent upward, the stator attachment piece portion 10d is formed by extending upward from the rail attachment piece portion 10b. However, the present invention is not limited to this, and the present invention can also be implemented by providing the stator attachment member as an independent member. Furthermore, as still another example, the rail attachment piece portion formed on the hanger rail 10 for the second door body may not be bent upward as in the present embodiment, but may be bent downward. In this case, the stator attachment piece portion can be formed by bending a dedicated one upward from the rail main body portion 10a to implement the present invention.

[0015] On the other hand, the slider 16 is connected to the second brackets 7 and 8 on the door bottom side and the door tip side provided on the support member 4. As a result, the slider 16 is disposed between the rail main body portion 10a of the hanger rail 10 for the second door body and the stator 16. More specifically, it is configured to move left and right integrally with the second door body 3 in a state disposed between the running locus of the hanger roller 9 for the second door body running on the rail main body portion 10a and the stator 15. The slider 16 is configured to be controlled to move in the left - right direction based on the change in the magnetic field of the field coil 15a that is excited by receiving the control current from the control unit 17 disposed above the stator 15. Thus, a linear motor using the stator 15 and the slider 16 is configured. The slider 16 attached in this way has a leading - edge portion at the door - tip side that protrudes significantly from the second door body 3 and reaches the door - tip side portion of the first door body 2 in the deployed posture, and a trailing - edge portion at the door - butt side that reaches the trailing - edge portion of the second door body 3, but is configured to be linear with a length that does not protrude toward the door - butt side from the trailing - edge. In addition, various sensors (not shown), such as a sensor for detecting the opening and closing status of the first door body 2 and a sensor for detecting the proximity of a person, are connected to the control unit 17, and it is configured to assist the opening and closing drive control of the linear motor of the door device 1. Further, in this embodiment, a power switch 20 for the door device 1 is provided at the leading - edge of the hanger rail 10 for the second door body.

[0016] Furthermore, the stator 15 attached to the stator - attachment piece portion 10d of the hanger rail 10 for the second door body is attached to the stator - attachment piece portion 10d in a state where it does not reach the leading - edge portion 10da. As a result, the leading - edge portion 10da of the stator - attachment piece portion 10d is in a free - space state without the stator 15. A lock - body portion 18a of a lock device 18 for locking the first door body 2 in the fully - closed posture is provided at the leading - edge portion 10da in this free - space state. The lock - body portion 18a is configured such that a lock rod 18c protrudes based on a locking command from the control unit 17. On the other hand, the leading - edge second bracket 8 has an extended - bracket portion 8a whose upper - edge portion extends upward more than the trailing - edge second bracket 7, and the extended - bracket portion 8a is configured to face the lock - body portion 18a in the front - rear direction when the first door body 2 is in the fully - closed posture. With the first door body 2 in the fully closed position, the locking rod 18c protruding from the lock main body 18a upon receiving a locking command penetrates and locks into the lock receiving portion 18b formed by the through hole formed in the extension bracket portion 8a, thereby locking the first door body 2 in the fully closed position.

[0017] In the present embodiment configured as described above, the sliding door type door device 1 in which the present invention is implemented interlocks and connects the first and second door bodies 2 and 3 arranged in a series in the left - right direction in the fully closed state such that the second door body 3 on the door butt side also opens and closes simultaneously in conjunction with the opening and closing movement of the first door body 2 on the door tip side to open and close the opening E. As a drive source for automatically opening and closing the door device 1, a linear motor including a linear stator 15 and a slider 16 is used. And in this case, as a result of the door body on the drive side being the second door body 3 on the door butt side rather than the first door body 2 on the door tip side which is opened and closed manually, even if the moving speed of the first door body 2 on the door tip side is faster than that of the second door body 3 and the slider 16 is a long one protruding more toward the door butt side than the first door body 2, it is possible to avoid the slider 16 coming into contact with the door butt side edge portion 19a of the door pocket 19 ahead of time before the first and second door bodies 2 and 3 reach the fully open position, and the opening E can be reliably opened and closed.

[0018] The first and second door bodies 2 and 3 are configured in a hanger rail system. The hanger rollers 9 for the second door body running on the second door body hanger rail 10 provided on the housing G side are provided on the door butt side second bracket 7 provided at the upper edge portion of the second door body 3 and the door tip side second bracket 8 provided on the support member 4 extending from the second door body 3 toward the door tip side. And as a result of the slider 16 being connected to the door tip side and the door butt side second brackets 7 and 8, it becomes possible to automate the door device 1 of the hanger rail system with a simple structure using a linear motor.

[0019] Moreover, the stator 15 is arranged above the running locus of the hanger roller 9 for the second door body that runs on the rail main body 10a of the hanger rail 10 for the second door body, the slider 16 is arranged between the stator 15 and the running locus of the hanger roller 9 for the second door body, and an extension piece portion 10d is formed to extend upward in a state of bypassing the hanger roller 9 for the second door body on the hanger rail 10 for the second door body, and the extension piece portion 10d is used as a stator attachment piece portion for attaching the stator 15. As a result, the hanger rail 10 for the second door body is also used as the stator attachment member 10d, and the number of parts can be reduced and the structure can be simplified. Moreover, since this stator attachment piece portion 10d is formed by extending upward from the rail attachment piece portion 10b for attaching the hanger rail 10 for the second door body to the housing side, while the hanger rail 10 for the second door body can be also used as the stator attachment member 10d, the structure of the hanger rail 10 for the second door body can be simplified.

[0020] Also, among the door tip side and door butt side second brackets 7 and 8 to which the hanger roller 9 for the second door body is attached, the upper end portion of the door tip side second bracket 8 is provided with an extension bracket portion 8a that extends upward to the stator attachment piece portion 10d site, and a locking device 18 for locking the first door body 2 in the closed position is provided at the door tip side edge portion 10da that is the empty space between the extension bracket portion 8a and the stator attachment piece portion 10d. As a result, the stator attachment piece portion 10d and the door tip side second bracket 8 are also used as members for attaching the locking device 18, and the number of parts can be reduced and the structure can be simplified. Moreover, for the locking device 18, the locking body portion 18a is provided on the stator attachment piece portion 10d, and the locking receiver portion 18b that the locking rod 18c protruding from the locking body portion 18a locks to is provided on the extension bracket portion 8a. As a result, the attachment structure of the locking device 18 is simplified and maintenance is also facilitated.

[0021] In the present embodiment, the door device 1 is configured to use a pair of door bodies of the first and second door bodies 2 and 3. However, it goes without saying that the present invention can also be implemented even if three or more door bodies are nested and stored as the door bodies.

Industrial Applicability

[0022] The present invention can be used as a sliding automatic door device for opening and closing an opening such as an entrance of a building.

Explanation of Signs

[0023] 1 Door device 2 First door body 2c Door butt side edge part 2d Door tip side edge part 3 Second door body 3a Front and rear panel parts 3c Door butt side edge part 3d Door tip side edge part 4 Support member 7 Door butt side second bracket (door butt side bracket) 8 Door tip side second bracket (door tip side bracket) 8a Extended bracket part 9 Hanger roller for second door body 10 Hanger rail for second door body 10a Rail main body part 10b Rail attachment piece part 10c Screw 10d Extended piece part (stator attachment piece part) 15 Stator 15a Field coil 16 Slider 16a Magnet 17 Control unit 18 Locking device 18a Lock main body part 18b Lock receiving part 18c Lock rod 19 Door pocket 19a Door butt side edge part (vertical frame) 19b Door tip side edge part E Opening G body

Claims

1. In a sliding door device in which a plurality of door bodies arranged in a series in the left - right direction in a closed state are interlock - connected so that the remaining door bodies also open and close simultaneously in conjunction with the opening and closing movement of the door body on the leading - edge side of the door, thereby opening and closing the opening, when configuring a drive source for automatically driving the opening and closing of the door device using a linear motor having a field coil, a linear stator provided on the housing side, and a slider having a magnet and provided on the door - body side, a sliding - door type automatic door device, characterized in that the door body to which the slider is connected is the door body on the trailing - edge side of the door.

2. The door body is composed of a two - part door body including a first door body on the leading - edge side of the door and a second door body on the trailing - edge side of the door, and the slider and the second door body are integrally connected via a bracket. The sliding - door type automatic door device according to Claim 1.

3. The first and second door bodies are hanger - type door bodies. The hanger roller for the second door body is provided on a trailing - edge side bracket provided at the upper - edge portion of the second door body and a leading - edge side bracket provided on a support member extending from the upper - edge portion of the second door body toward the leading - edge side of the door. The slider is connected to the leading - edge side and trailing - edge side brackets. The sliding - door type automatic door device according to Claim 2.

4. The stator is arranged above a hanger rail for the second door body on which the hanger roller for the second door body runs. The slider is arranged between the stator and the hanger rail for the second door body. On the hanger rail for the second door body, an extension piece portion is formed which extends upward beyond the slider arrangement portion in a state of bypassing the hanger roller for the second door body running on the hanger rail for the second door body. The sliding - door type automatic door device according to Claim 3, characterized in that the extension piece portion is configured as a stator attachment piece portion for attaching the stator.

5. The stator attachment piece portion is formed by extending an upper - rail attachment piece portion for attaching the hanger rail for the second door body to the housing side upward. The sliding - door type automatic door device according to Claim 4.

6. One of the leading - edge side and trailing - edge side brackets has an extended bracket portion whose upper end extends to the stator attachment piece portion site. The sliding - door type automatic door device according to Claim 4 or 5, characterized in that a locking device for locking the first door body in a closed posture is provided on the extended bracket portion and the stator attachment piece portion.

7. The locking device according to claim 6, wherein the sliding door type automatic door device is configured to include a locking main body portion provided on a stator attachment piece portion, and a locking receiver portion provided on an extension bracket portion for locking a locking rod protruding from the locking main body portion in a closed posture of the first door body.

Citation Information

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